US4264549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for batch-coating of electric components
Assignee: Siemens AG
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Filing: 1979-06-18
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Granted: 1981-04-28
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Expires: 1999-06-18
Abstract
Abstract A process for simultaneously batch-coating a number of electric components having radial connections wires extending in approximately parallel relation from the element to be covered utilizes a plate having a hole pattern therein for receiving the wires to retain the elements during coating. A synthetic foil is first placed over the plate and the wires are forced through the foil into the holes. A grid having openings therein formed by perpendicular walls for surrounding the elements is placed over the plate for use as a casting mold. A casting resin is deposited over the grid in excess quantity, and is then smoothed by moving a doctor over the grid. After the resin has hardened, the grid is removed and the individual elements, with the resin adhering to the synthetic foil, are separated.
Inventors
- 👤 Ferdinand Utner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:30
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A process for simultaneously coating a large number of electrical components having downwardly extending leads thereon with viscous resin comprising the steps of: providing a rigid plate having a hole pattern therein for receiving a portion of each of said leads for substantially immovably laterally and vertically positioning said components in spaced relation on said base; covering said hole pattern with a synthetic foil layer; inserting said leads into said holes through said synthetic foil layer so that each lead extends to a bottom of each hole; placing a grid having openings therein over said foil layer to contain and surround each component in respective openings; locking said grid in position with respect to said plate; applying viscous synthetic resin over said grid to fill said openings in said grid; removing excess resin from said grid; hardening said resin; removing said grid; removing said components and foil layer from said plate; and separating said components.
Claim 2
Dependent Claim
155 words
A process for simultaneously coating a large number of electrical components having downwardly extending leads thereon with viscous resin comprising the steps of: providing a rigid plate having a hole pattern therein for receiving a portion of each of said leads for substantially immovably laterally and vertically positioning said components in spaced relation on said base; covering said hole pattern with a synthetic foil layer; inserting said leads into said holes through said synthetic foil layer so that each lead extends to a bottom of each hole; placing a grid having openings therein over said foil layer to contain and surround each component in respective openings; locking said grid in position with respect to said plate; applying viscous synthetic resin over said grid to fill said openings in said grid; removing excess resin from said grid; hardening said resin; removing said grid; removing said components and foil layer from said plate; and separating said components.
Claim 3
Dependent Claim
26 words
The process of claim 1 including the additional step of stamping each component with an electrical designation after hardening said resin and before removing said grid.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein the step of removing excess resin from said grid consists of moving a doctor in a first direction across said grid to scrape and level said resin.
Claim 5
Dependent Claim
42 words
The process of claim 3 wherein the step of removing excess resin from said grid includes the additional step of vibrating said doctor adjacent said grid in a direction perpendicular to said first direction of movement of said doctor over said grid.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |